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VulnerabilityPublished

CVE-2026-63237: Three Learning Koollab LMS · CWE-347

Affects Three Learning Koollab LMSSource CVE Database V5

0

Not known to be exploited · CVSS 4.8 Medium.

Data as of 28 Oct 2026, 05:11 UTC

CVSS 3.1 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Three LearningKoollab LMSAffected
  • =5.3.2
Fixed in–

Description

CVE-2026-63237 is a medium severity vulnerability in Three Learning's Koollab LMS version 5.3.2. It involves a bypass of the TOTP two-factor authentication mechanism by allowing an attacker to supply a client-controlled seed, which generates a matching one-time password and bypasses the second authentication factor. This could potentially enable unauthorized access to administrator accounts.

References

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